Fabricated A-Body spindle ideas and discussion

Some thoughts after reading through this;

Its all very cool to see Mopar guys thinking down this line of modification.

Altered mounting points for upper control arm would allow customization of anti-dive, instant center location contingent on spindle height, caster, and camber gain curve.

I would look at ways to avoid using the OEM lower ball joint/steering arm combo. A divorced set up would provide all the benefits outlined by 73bluNblu plus allow replaceable and interchangeable steering arms for rear or front steer applications. Going to a fabricated arm in a custom length would help minimize angular changes through-out the range of travel, while potentially increasing offset and possibly improving scrub.

Front ends don't work in a vacuum and this needs to tied in with COG height and roll axis parameters as part of rear geometry. If you have a super clean front geometry layout but end up with a huge moment lever arm, you'll have to start stepping up roll couple percentage to maintain level cornering.

All of this is moot of you compete in a class with a strict rule set that limits configuration changes.

Even with a stock geometry, the idea of bearing cartridges, ABS, and access to a wider range of rotor and caliper combos is pretty cool.

I would definitely advise basing the approach on more widely available parts from OEMs that easily found. Even factory custom, special offering, one or only a couple year model offerings that are sorta trick will make parts harder to source in another 5 years. Case in point, once upon a time the 275front/335 rear 17" tire combo was the hot ticket for performance cars such as Viper, Vette, Camaro and Mustang. Now those sizes are only available from a few manufacturers and are getting more expensive as the performance world has moved on.